Hot skin safety test time
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09-03-2008, 10:52
Post: #5
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Hot skin safety test time
Kurt:
You can use an adapter for the 50 amp to 20 amp and 110vac will be on both legs. You won't be running and major items while doing this test but it will suffice to do the test and check. Ralph At 10:46 PM 9/3/2008 +0000, you wrote: >Ralph, > >Does this apply to the coaches that have 50 amp service? >If so, and I plug into a 30 amp. outlet only one leg of the two leg >system is hot, the other side has no power, Do I run the test as >first decribed or is there an alternative proceedure? >I have on rare occasions felt that tingling on the coach. > >Thanks, > >Kurt Horvath >95 PT-42 >10AC > >--- In WanderlodgeForum@yahoogroups.com, "Ralph L. Fullenwider" > > > > > Yes there is logic to that because the ground and neutral tie is >not > > present so there is only a path back to neutral and not ground, but >still > > go through the switching each breaker off and check. You will or >should not > > have a hot skin when plugged into campground shore power, or gen >set, and > > the hot skin is more prevalent when plugged into a 110 vac source >vs 220 vac. > > > > In recent posts, we learned that the only place that the neutral >and ground > > are to be bonded together is at the source only and not the coach. >I have > > seen the neutral and ground bonded in the heater in the bath where >the > > wiring got hot and melted through the wire nuts because the wire >nuts were > > not tight and taped and this was causing the hot skin test to fail. >I also > > found much the same thing in a 4x4 electrical box in route to the >water heater. > > > > I needed to mention the adapter to 110vac should be used for this >test. > > > > Safe travels, > > > > Ralph and Charolette Fullenwider > > 84FC35 "Ruff Diamond" > > Duncan, Oklahoma > > > > At 10:16 PM 9/3/2008 +0000, you wrote: > > >Ralph, thanks for this, I have "hot skin" and also had it on my old > > >FC. I have a question... > > > > > >One question...my coach is plugged into a non-grounded (the old 2- >pin > > >type) outlet when parked at home. I am no electrician, but I had > > >convinced myself that this non-grounded outlet was the source of > > >my "hot skin". The "hot skin" isn't there when on generator power. > > >Is there any logic to that theory? > > > > > >Scott Forman > > >86 PT38 > > >Memphis > > > > > >--- In WanderlodgeForum@yahoogroups.com, "Ralph L. Fullenwider" > > > > > > > > > > > Hello everyone: > > > > > > > > It has been a warm summer for most of us and the A/C's have been > > >running > > > > leaving the heaters and other things at rest. > > > > > > > > I have been doing up grades and some R&R on some of the systems >in > > >Ruff > > > > Diamond. And with winter coming up I decided it was time to do a > > >hot skin > > > > test as it is on my PM list every 6 months. > > > > > > > > What your checking for is any rise in AC voltage from a > > >ground/ground > > > > source with the negative lead on your meter attached to that and > > >the red > > > > lead to probe several spots around the door frame metal. What >you > > >should > > > > see when first hooking up the meter is .0001 plus or minus 0. If > > >you see a > > > > reading of .0201 reading then you have a hot skin with 1/4 >volts AC > > >(it can > > > > be as much as 1/2 volt AC), and need to find the source of the > > >voltage. > > > > What will a hot skin do? It will send a tingling through your >body > > >if you > > > > touch any metal part of the Coach while standing in a rain >puddle > > >or if > > > > your sweaty and hot skin has been known to send enough voltage >via > > >amperage > > > > through your hand to ground to knock you off the step and yes, > > >deaths have > > > > occurred. Is it serious, darn right it is. > > > > > > > > If you don't have a deviation great, fold it up your done and >you > > >and your > > > > Family are safe. If you do have voltage then use a clip lead and > > >connect > > > > the red lead to a point around the door and go to the main >breaker > > >box and > > > > starting with one breaker (either leg) switch it off and check >the > > >meter > > > > for change, do this on both legs until you find a change and >what > > >ever > > > > breaker you switch off the difference is noted then that is the >AC > > > > electrical circuit you need to find the problem on. > > > > > > > > If, when you first do the check and the meter range is un stable > > >try > > > > pouring a glass of water on the ground rod you drove into the > > >ground for > > > > your ground /ground. If the meter is still ranging up and down >then > > >more > > > > than likely you do not have a hot skin but dirty contacts on the > > >change > > > > over switch, automatic or manual it does not matter. > > > > > > > > Oh for my ground I use a copper tool I made for doing this. You >can > > >take an > > > > 18inch length of rebar, sharpen one end and drive it into the > > >ground just > > > > out side the door way so you can attach the black meter lead to >it. > > > > > > > > The whold think take less and 10 minutes to do and you know if >your > > >safe or > > > > that you need to find the problem. > > > > > > > > Safe travels, > > > > > > > > Ralph and Charolette Fullenwider > > > > 84FC35 "Ruff Diamond" > > > > Duncan, Oklahoma > > > > > > > > > > > > >------------------------------------ > >Yahoo! Groups Links > > > Safe travels, Ralph and Charolette Fullenwider 84FC35 "Ruff Diamond" Duncan, Oklahoma |
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Messages In This Thread |
Hot skin safety test time - Ralph L. Fullenwider - 09-03-2008, 09:29
Hot skin safety test time - Scott Forman - 09-03-2008, 10:16
Hot skin safety test time - Ralph L. Fullenwider - 09-03-2008, 10:35
Hot skin safety test time - Kurt Horvath - 09-03-2008, 10:46
Hot skin safety test time - Ralph L. Fullenwider - 09-03-2008 10:52
Hot skin safety test time - Kurt Horvath - 09-03-2008, 10:59
Hot skin safety test time - Gregory OConnor - 09-04-2008, 04:41
Hot skin safety test time - Ralph L. Fullenwider - 09-04-2008, 17:35
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